fn seed(self: *Pcg, init_s: u64) void
self: *Pcg
init_s: u64
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fn seed(self: *Pcg, init_s: u64) void { // Pcg requires 128-bits of seed. var gen = std.Random.SplitMix64.init(init_s); self.seedTwo(gen.next(), gen.next()); }